The best selling reusable bag by Baggu is not just for the grocery store, it goes everywhere and hauls (practically) anything. Carry in your hand or over your shoulder. Holds 2-3 plastic grocery bags worth of stuff. Folds into a flat 5 in. x 5 in. pouch. Holds 30 lbs.
Now made from 40% recycled nylon sourced from pre-consumer waste.